Insulate Your Roof Rafters

If 180mm is to be installed then 100mm board might be introduced between the rafters there has to be a minimum 25mm air gap between the insulation and the underside of the tiles or slates with an 80mm board running across the rafters.

Insulate your roof rafters.

If you have questions about your attic give us a call at 1 800 516 0949. Thanks everyone for your insight. Step 3 installing the insulation. You can use rigid foam panels or do as tom silva does with nearly all houses these days.

In a warm roof structure the insulation is placed above or above and between rafters in order to avoid heat loss and energy transfer. Hire a pro to install spray foam insulation. If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor. How to insulate roof rafters.

In our doormer there are two small doors going into the attic area from a finished dormer area and the. In the case of a cold roof structure the insulation is placed between or between and under the rafters or at ceiling joist level and the roof is ventilated by leaving a 50mm gap above. If your attic is going to be converted into livable space then you will need to insulate the roof rafters. This means insulating between or below the sloping beams that form the construction and support a sloping roof.

Get your kits the easy to use spray foam kit. The rafters are joined together by a horizontal ridge board at the top and tied together by ceiling joists at the bottom. Consider using high density r 30 batts which are as thick as r 25 batts but fit into 2x10 framing. Step 1 measuring the space.

Step 2 cutting and fitting the insulation. Use closed cell foam it green for attic rafters. You can also add rigid foam insulation under the rafters which adds r value and eliminates thermal bridging through wood rafters. Insulating the rafter space will give you a warm loft.

Install ventilation baffles into the space between the rafters before you install the insulation usually by stapling into place. First climb into the attic and use measuring tape to determine the square footage of the space. Unlike solid insulation products that require careful measurement cutting and fitting spray foam can cover even the most uneven surface instantly. In just a few minutes you ll have the information you need to make a smart purchasing decision for your home.

A vent baffle should be installed between the insulation and the roof decking to maintain the ventilation channel. I think the thing i ve learned is that if your not going to finish the attic area and the walls to the finished room are insulated you don t have to insulate the roof joist but you do need to insulate in between the floor joist and the finished walls.